Datasheet

PAGE . 3
STAD-FEB.10.2009
1
1SMB5921~1SMB5942
100
200
100
70
50
30
20
10
10 20 30 50 70 200
V
Z
@I
ZT
Vz, ZENER VOLTAGE (VOLTS)
Fig.3 Zener Voltage - 14 to 200 Volts
V
Z=150V
62V
22V
12V
6.8V
0.5 1 2
5
10 20 50 100 200 500
1K
500
200
100
50
20
10
5
2
1
T
J
=25 C
I
Z
(rms) =0.1 I (dc)
O
Z
Iz, ZENER TEST CURRENT (mA)
Zz, DYNAMIC IMPEDANCE (OHMS)
 vz, TEMPERATURE COEFICENT (mV/ C)
O
 vz, TEMPERATURE COEFICENT (mV/ C)
O
MAXIMUM POWER DISSIPATION, Watts
Fig.4 Effect of Zener Current
0.1 0.20.3 0.5
12
3 5 10 2030 50 100
1K
500
300
200
100
50
30
20
10
RECTANGULAR
NONREPETITIVE
WAVEFORM
T
J
=25 C PRIOR
O
TO INTIAL PULSE
Ppk, PEAKSURGE POWER (WATTS)
PW, PULSE WIDTH (ms)
Fig.6 Maximum Surge Power
200
100
70
50
30
20
10
7
5
3
2
5 7 10 20 3 400 6500 70 100
I
Z
(dc)=1mA
I
Z
(rms)=0.1I
Z
(dc)
10mA
20mA
Zz, DYNAMIC IMPEDANCE (OHMS)
Vz, ZENER VOLTAGE (VOLTS)
Fig.5 Effect of Zener Voltage
2.5
2
1.5
1
0.5
0
0
20 40 60 80 100 120 140 150 180
LEAD TEMPERATURE, C
O
Fig.1 Steady State Power Derating
V , ZENER VOLTAGE (VOLTS)
Z
8
6
4
2
0
-2
-4
24
6810
10
12
V
Z
@I
ZT
Fig.2 Zener Voltage - to 12 volts